Aurora R Series LED downlights brochure

Joist Compliant Fire Rated Downlights

Regulations & Testing - The Importance of Compliance

Fire barriers need to be considered during a construction project to make a safe evacuation possible. The fire rated downlight is a life saving luminaire specifically designed with fire barriers in mind. As market leaders in the manufacture of fire rated downlights, Aurora are the first choice for specifiers and installers alike. Aurora’s ranges include a variety of integrated LED and GU10 downlights, offering a solution for every application.

Fully Fire Tested in the UK and EU

Meets NHBC Technical Standards

It is important to note that unlike traditional joists, one test with one i-joist or open web joist manufacturer does NOT give you automatic approval with any other manufacturer. However, it is also acceptable to NHBC Building Control to use the test to demonstrate compliance for other engineered joist floors where the key elements of the test are the same or better.

SCAN HERE to watch video or visit auroralighting.com/gb/ijoist

engineered by nature

Fire Testing - Common Engineered Joist Types

i-joists

Metal Web Joists

Solid Timber Joists

Timber Engineered i-joists, sometimes known as I-Beams, are comprised of a top and bottom timber flange combined with a tall vertical OSB (Oriented Strand Board) web: • They are strong and lightweight, with enhanced rigidity • High strength-to-weight ratio for easier handling and on-site installation • Can be cut to required length on-site and installed more quickly • Not prone to shrinking or warping, resulting in a quieter floor construction • Can be manufactured in greater lengths, reducing the need for columns & beams • Allows for larger spaces, satisfying the trend for open-plan living areas in homes

Metal Web Joists are constructed with a top and bottom stress graded timber cord, plated together with high strength open metal web sections on either side of the top and bottom timber flanges: • Have an open central section for ease of installation of services • Different lengths available to allow for longer spans • Ideal for open-plan spaces within residential buildings • Less timber means less shrinkage • Manufactured to length off-site • Timber cords should never be cut or drilled on-site • The metal webs should never be cut or removed, as this will reduce strength

Softwood joists are ideal for smaller projects, such as extensions, small dwellings or where relatively short spans are involved:

• Traditional method for building floors using solid timber • Strength Grading of joists is done by machine to British Standard EN 14081 to classes C16 or C24 • There are actually 12 Strength Classes available in Europe, but the UK mainly uses C16 and C24 • The Strength Class of the joist is very important when determining which joist to use for your project. It will help you identify which joist dimensions to use for a particular span and loading situation

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